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    <meta charset="UTF-8">
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    <title>Document</title>
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    <!-- 请用循环计算出 1+2+3+4+5+...+100   的值 -->
    <script type="text/javascript">
        var sum = 0
        for (i = 1; i <= 100; i++) {
            sum += i
        }
        console.log(sum);
    </script>
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